265 
corresponding beds of Germany) it is possible that they may 
have been washed out of some older stratum. But as regards 
the elephant and the rhinoceros the case is different. There is 
not the slightest reason to doubt that they really belong to 
this period, and, in the case of the rhinoceros, we have the 
evidence of M. Baillon that the bones of the hind leg of a 
rhinoceros were found at Menchecourt, in their relative 
situations, while the rest of the skeleton was discovered at a 
little distance. In this case, therefore, the body must have 
been entombed before the decay of the ligaments. Sir 
Cornewall Lewis, however, in his interesting and able, even 
if unsatisfactory work, on the Astronomy of the Ancients, 
argues that even if we must give an affirmative answer to 
the two first questions, and admit the coexistence of man in 
Western Europe with the mammoth and tichorhine rhinoceros, 
still we may do this by bringing these animals down to a 
later period, as well as by carrying man back to an earlier 
one. 
Fairly admitting this, let us now, therefore, turn to the 
physical evidence of the case, and see how far this will 
enable us to give any, and if so what, answer, to the third 
of the above questions. In this part of the subject I shall 
be principally indebted for my facts to Mr. Prestwich. But 
I may perhaps be permitted to mention that though the 
following statements are given on his authority, I have 
verified almost the whole of them for myself, having had the 
advantage of visiting, with him and Mr. Evans, many 
localities, not only in the valley of the Somme, but also 
along the banks of the Seine and its tributaries. 
A section at St. Acheul, near Amiens, the upper layer of 
vegetable soil having been removed, presents the following 
strata : — 
1. A bed of brick earth from four to five feet in thickness, 
and containing a few angular flints. 
t2 
